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Pose Control in Dynamic Conditions

  • Brian F. Allen
  • Michael Neff
  • Petros Faloutsos
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 6459)

Abstract

Pose control for physically simulated characters has typically been based on proportional-derivative (PD) controllers. In this paper, we introduce a novel, analytical solution to the 2nd-order ordinary differential equation governing PD control. The analytic solution is tailored to the needs of pose control for animation, and provides significant improvement in the precision of control, particularly for simulated characters in dynamic conditions.

Keywords

Target Position Control Torque Physical Simulation Target Velocity Simulated Character 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    Allen, B., Chu, D., Shapiro, A., Faloutsos, P.: On the beat!: Timing and tension for dynamic characters. In: Proceedings of the 2007 ACM SIGGRAPH/Eurographics Symposium on Computer Animation, Eurographics Association, p. 247 (2007)Google Scholar
  2. 2.
    Brenan, K., Campbell, S., Campbell, S., Petzold, L.: Numerical solution of initial-value problems in differential-algebraic equations. Society for Industrial Mathematics (1996)Google Scholar
  3. 3.
    Corless, R., Gonnet, G., Hare, D., Jeffrey, D., Knuth, D.: On the LambertW function. Advances in Computational Mathematics 5(1), 329–359 (1996)MathSciNetCrossRefzbMATHGoogle Scholar
  4. 4.
    Faloutsos, P., van de Panne, M., Terzopoulos, D.: Composable controllers for physics-based character animation. In: SIGGRAPH 2001: Proceedings of the 28th Annual Conference on Computer Graphics and Interactive Techniques, pp. 251–260. ACM, New York (2001)Google Scholar
  5. 5.
    Featherstone, R.: Rigid body dynamics algorithms. Springer, New York (2008)CrossRefzbMATHGoogle Scholar
  6. 6.
    Free Software Foundation (FSF): GNU scientific libraryGoogle Scholar
  7. 7.
    Hodgins, J., Wooten, W., Brogan, D., O’Brien, J.: Animating human athletics. In: Proceedings of the 22nd Annual Conference on Computer Graphics and Interactive Techniques, p. 78. ACM, New York (1995)Google Scholar
  8. 8.
    Notman, G., Carlisle, P., Jackson, R.: Context based variation of character animation by physical simulation. In: Games Computing and Creative Technologies: Conference Papers (Peer-Reviewed), p. 2 (2008)Google Scholar
  9. 9.
    Van de Panne, M., Kim, R., Fiume, E.: Virtual wind-up toys for animation. In: Graphics Interface, pp. 208–208 (1994)Google Scholar
  10. 10.
    Sanchez, D.: Ordinary Differential Equations and Stability: Theory: An Introduction. WH Freeman and Company, San Francisco (1968)zbMATHGoogle Scholar
  11. 11.
    Shapiro, A., Chu, D., Allen, B., Faloutsos, P.: A dynamic controller toolkit. In: Sandbox 2007: Proceedings of the 2007 ACM SIGGRAPH Symposium on Video Games, pp. 15–20. ACM, New York (2007)CrossRefGoogle Scholar
  12. 12.
    Shapiro, A., Faloutsos, P.: Interactive and reactive dynamic control. In: SIGGRAPH 2005: ACM SIGGRAPH 2005 Sketches, p. 26. ACM, New York (2005)Google Scholar
  13. 13.
    Shapiro, A., Kallmann, M., Faloutsos, P.: Interactive motion correction and object manipulation. In: ACM SIGGRAPH Symposium on Interactive 3D Graphics and Games (I3D 2007), Seattle, April 30 - May 2 (2007)Google Scholar
  14. 14.
    Smith, R.: Open dynamics engine, http://ode.org
  15. 15.
    Wang, J., Fleet, D., Hertzmann, A.: Optimizing Walking Controllers. ACM Transactions on Graphics, SIGGRAPH Asia (2009)Google Scholar
  16. 16.
    Yin, K., Loken, K., van de Panne, M.: Simbicon: simple biped locomotion control. In: SIGGRAPH 2007: ACM SIGGRAPH 2007 Papers, p. 105. ACM, New York (2007)Google Scholar
  17. 17.
    Zhao, P., van de Panne, M.: User interfaces for interactive control of physics-based 3d characters. In: Proceedings of the 2005 Symposium on Interactive 3D Graphics and Games, p. 94. ACM, New York (2005)Google Scholar
  18. 18.
    Zordan, V., Hodgins, J.: Motion capture-driven simulations that hit and react. In: Proceedings of the 2002 ACM SIGGRAPH/Eurographics Symposium on Computer Animation, pp. 89–96. ACM, New York (2002)CrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2010

Authors and Affiliations

  • Brian F. Allen
    • 1
  • Michael Neff
    • 2
  • Petros Faloutsos
    • 1
  1. 1.University of CaliforniaLos AngelesUSA
  2. 2.University of CaliforniaDavisUSA

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